bpo-44712: Replace "type(literal)" with corresponding builtin types (GH-27294)

I suppose it is a remnants of very old code written when str, int, list, dict, etc
were functions and not classes.

Lib/pty.py

@@ -162,7 +162,7 @@ def _copy(master_fd, master_read=_read, stdin_read=_read):
 
 def spawn(argv, master_read=_read, stdin_read=_read):
     """Create a spawned process."""
-    if type(argv) == type(''):
+    if isinstance(argv, str):
         argv = (argv,)
     sys.audit('pty.spawn', argv)